The generator matrix

 1  0  0  0  1  1  1  6  6  1  6  1  1  1  6  1  6  4  0  1  1  1  1  1  2  1  1  4  1  1  1  1  4  1  0  1  1  2  4  1
 0  1  0  0  0  1  1  1  1  7  1  1  6  6  2  0  6  1  2  3  7  0  4  5  1  2  3  1  6  1  6  5  6  2  1  7  6  0  1  6
 0  0  1  0  1  1  0  1  0  0  3  3  2  5  1  4  2  4  1  3  2  5  7  6  5  1  1  5  0  6  3  5  0  6  6  6  7  1  1  0
 0  0  0  1  1  0  1  1  3  2  0  1  1  4  5  3  1  5  4  3  3  4  7  6  4  7  2  3  2  4  0  2  1  4  3  0  1  2  0  0
 0  0  0  0  4  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  4  4  4  4  4  4  4  4  4  4  0  0  4  4  4  4  0  4
 0  0  0  0  0  4  0  0  4  0  4  4  0  4  0  4  4  0  4  4  4  0  4  0  0  0  4  0  0  4  0  0  4  4  4  4  4  0  4  0
 0  0  0  0  0  0  4  0  4  4  4  0  0  4  4  4  0  0  4  4  0  4  0  0  4  4  0  0  0  4  4  4  0  4  0  4  0  0  4  4
 0  0  0  0  0  0  0  4  0  4  4  4  4  4  0  0  4  4  0  4  0  0  0  0  4  4  0  4  4  0  0  4  0  0  0  4  4  4  0  4

generates a code of length 40 over Z8 who´s minimum homogenous weight is 31.

Homogenous weight enumerator: w(x)=1x^0+90x^31+335x^32+820x^33+1527x^34+2464x^35+3795x^36+5188x^37+6458x^38+7828x^39+8217x^40+7700x^41+7049x^42+5480x^43+3713x^44+2300x^45+1290x^46+754x^47+308x^48+120x^49+55x^50+24x^51+11x^52+4x^54+3x^56+1x^58+1x^60

The gray image is a code over GF(2) with n=160, k=16 and d=62.
This code was found by Heurico 1.16 in 63.8 seconds.